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AT KBC: Actually leave the P1 video type bit handling to the machine code - the handling on the KBC side was redundant.

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OBattler
2025-12-21 17:05:51 +01:00
parent 2ad2579d42
commit 0516aa3d00
1 changed files with 2 additions and 7 deletions
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9
src/device/kbc_at.c
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@@ -37,7 +37,6 @@
#include <86box/fdd.h>
#include <86box/fdc.h>
#include <86box/pci.h>
#include <86box/video.h>
#include <86box/keyboard.h>
#define STAT_PARITY 0x80
@@ -2793,11 +2792,8 @@ kbc_at_reset(void *priv)
dev->mem[0x20] |= CCB_TRANSLATE;
dev->command_phase = 0;
/* Set up the correct Video Type bits. */
if (!is286 || (kbc_ven == KBC_VEN_ACER))
dev->p1 = video_is_mda() ? 0xb0 : 0xf0;
else
dev->p1 = video_is_mda() ? 0xf0 : 0xb0;
/* Video Type is now handled in the machine P1 handler. */
dev->p1 = 0xf0;
kbc_at_log("ATkbc: P1 = %02x\n", dev->p1);
/* Disabled both the keyboard and auxiliary ports. */
@@ -2918,7 +2914,6 @@ kbc_at_init(const device_t *info)
dev->is_asic = !!(info->local & KBC_FLAG_IS_ASIC);
dev->is_type2 = !!(info->local & KBC_FLAG_IS_TYPE2);
video_reset(gfxcard[0]);
kbc_at_reset(dev);
dev->handlers[0].read = kbc_at_port_1_read;